Beheneth-25
molecular structure · PubChem
AKA: Beheneth-3, 297176-96-6, PEG-3 behenyl ether, Triethylene glycol behenyl ether, Ethanol
Synthetic
Cleanser
Emulsifier
Clean
Docosanol, ethoxylated, 25 mol EO (average molar ratio)
Effective at 2.5%
Formula
C28H58O4
Mol. Weight
458.80
CAS #
26636-40-8
Form
Liquid
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Removes Impurities
Cleansing Surfactant
Emulsifier
Mixes Oil & Water
Traditional Use
A synthetic polyethylene glycol-based emulsifier derived from behenic acid, developed in modern cosmetics manufacturing to improve product stability and texture without traditional use history.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
0.0008%
5.0%
0%7%
Reported use
CIR reported use: 0.0008-5 | 0.003-0.6 | 0.03-3 | 0.02-0.3 | 0.5-5
Regulatory Agencies
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR